With less than 48 hours until voting day, it was unclear whether the Democrat could convert into electoral gain the announcement Sunday that the FBI had cleared her again of wrongdoing over her email use.
Trump Vs Clinton latest polls by New York Times
Clinton's popularity had dipped after FBI Director James Comey dropped a campaign bombshell eight days earlier with a reopened inquiry into whether she exposed US secrets by using a private email server while serving as secretary of state.
Clinton Vs Trump latest polls result: US presidential race tightens
Opinion polls had tightened as Trump began to recover ground lost while battling accusations of sexual assault , and the race looked headed for a photo finish.
The billionaire Republican contender, who has whipped up a populist grassroots movement among largely white male voters, landed in Sarasota, Florida early Monday and was met by an enthusiastic crowd.
After a stop there, the 70-year-old is due to fly to rallies in North Carolina, Pennsylvania, New Hampshire, before ending with a late event in Michigan.
In Virginia Sunday, he stoked supporters at a post-midnight rally with stock attacks on his rival, branding her the "most corrupt candidate ever to seek the office of the presidency."